Great Company As a leading supplier of waterproof and insulation materials, JOABOA TECH focus on waterproof and insulation materials for ten years, which annual sales reach over RMB 1 billion, with over 1000 JOABOA service agencies, and more than 4,000 staff offering service. Top Brand JOABOA TECH is the vice chairman unit of China Building Waterproof Association, members of the presidium, the China Construction Waterproof Industry leading brand, Chinese Construction Industry top 500 ...